/Engine/Source/Runtime/Engine/Public/HLSLTree/HLSLTree.h
void GetObjectCustomHLSLParameter ( [FEmitContext](API\Runtime\Engine\HLSLTree\FEmitContext) & Context, [FEmitScope](API\Runtime\Engine\HLSLTree\FEmitScope) & Scope, const [FName](API\Runtime\Core\UObject\FName) & ObjectTypeName, const TCHAR * ParameterName, FStringBuilderBase & OutDeclarationCode, FStringBuilderBase & OutForwardCode ) const